CryptoMessage v1.3.2版本的 MD5 值为：66c611ce56a11450659dc23697562928

以下内容为反编译后的 Data.java 源代码，内容仅作参考

package org.jivesoftware.smackx.bytestreams.ibb.packet;

import org.jivesoftware.smack.packet.IQ;

public class Data extends IQ {
    private final DataPacketExtension dataPacketExtension;

    public Data(DataPacketExtension dataPacketExtension) {
        super("data", "http://jabber.org/protocol/ibb");
        if (dataPacketExtension == null) {
            throw new IllegalArgumentException("Data must not be null");
        }
        this.dataPacketExtension = dataPacketExtension;
        setType(IQ.Type.set);
    }

    public DataPacketExtension getDataPacketExtension() {
        return this.dataPacketExtension;
    }

    @Override
    protected IQ.IQChildElementXmlStringBuilder getIQChildElementBuilder(IQ.IQChildElementXmlStringBuilder iQChildElementXmlStringBuilder) {
        return this.dataPacketExtension.getIQChildElementBuilder(iQChildElementXmlStringBuilder);
    }
}